Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 561 [Rate centres in NPA 561] [Dial plan for NPA 561]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
561-666 A Delray Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-666 0 Delray Beach FL MRMRFL095MD  5562 METROPCS, INC. 46018      
561-666 1 Delray Beach FL MIAMFL98DS6  937C ONVOY, LLC - FL 46018      
561-666 2 Delray Beach FL MIASFL680MD  982E BANDWIDTH.COM CLEC, LLC - FL 46018      
561-666 3 Delray Beach FL MIANFLWKDS0  8664 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - FL 46018      
561-666 4 Delray Beach FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46018      
561-666 5 Delray Beach FL MIAMFLGR42Z  520F DIGITALIPVOICE, INC. - FL 46018      
561-666 6 Delray Beach FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46018      
561-666 7 Delray Beach FL MIASFL680MD  982E BANDWIDTH.COM CLEC, LLC - FL 46018      
561-666 8 Delray Beach FL MIASFL680MD  982E BANDWIDTH.COM CLEC, LLC - FL 46018      
561-666 9 Delray Beach FL MIATFLADDS2  4802 LEVEL 3 COMMUNICATIONS, LLC - FL 46018      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.